Originally posted by barryr
Hello
That looks like someone tried to oil the lens or it got really hot and the factory applied lubricant liquefied then hardened on the lens inside. You should send it to me.

Barry
Thanks for the help everyone. I really want to get this lens clean so i might try some of the chemicals you have recommended.
I think i had some acetone in my room, plus it smells great, so thats a good start.
You could be right about the oil you know... My dad used it for a while and his friends used it as a travel lens and told me they had given it a proper clean at some point. I was really unsure about that, they dont really know much i dont think so they might have tipped a little oil in. By the patterns and even spread though, it has to be fungus?
Can i take it that from people's experiences this is the kind of thing fungus looks like on a lens?